Diff: main.cpp

Revision:

0:8a1a4eabe49e

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Oct 30 06:54:23 2017 +0000
@@ -0,0 +1,169 @@
+#include "mbed.h"
+
+AnalogIn analog_value(A2);
+DigitalIn button(USER_BUTTON);
+
+DigitalOut d1(D11);
+DigitalOut c1(D10);
+DigitalOut b1(D9);
+DigitalOut a1(D8);
+DigitalOut d2(D5);
+DigitalOut c2(D4);
+DigitalOut b2(D3);
+DigitalOut a2(D2);
+
+BusOut myled(PA_11,PB_12,PB_2,PB_1,PB_15,PB_14,PB_13,PC_4);
+
+float meas_r;
+int meas_mv;
+int meas_v;
+int meas_vf;
+int state;
+int preState;
+int buttonState;
+int vuStatus,segmentStatus;
+
+            
+void Segment(){
+    int i,j;
+    int bin1[4]= {0};
+    int bin2[4]= {0};
+    i = 0, j = 0;
+    do {
+        bin1[i++] = meas_v % 2;
+        meas_v = meas_v / 2;
+    }while(meas_v > 0);
+    do {
+        bin2[j++] = meas_vf % 2;
+        meas_vf = meas_vf / 2;
+    }while(meas_vf > 0);
+//    printf("SSSS = %d = %d = %d = %d \n", second[0],second[1],second[2],second[3]); 
+    d1 = bin1[3];
+    c1 = bin1[2];
+    b1 = bin1[1];
+    a1 = bin1[0];
+    d2 = bin2[3];
+    c2 = bin2[2];
+    b2 = bin2[1];
+    a2 = bin2[0];           
+}
+
+void checkState(){
+    preState = state;
+    while (1){
+        if (meas_mv < 412.5){
+            state = 1;
+            break;
+        }
+        if (meas_mv >= 412.5 && meas_mv < 825 ){
+            state = 2;
+            break;
+        }
+        if (meas_mv >= 825 && meas_mv < 1237.5 ){
+            state = 3;
+            break;
+        }
+        if (meas_mv >= 1237.5 && meas_mv < 1650 ){
+            state = 4;
+            break;
+        }
+        if (meas_mv >= 1650 && meas_mv < 2062.5 ){
+            state = 5;
+            break;
+        }
+        if (meas_mv >= 2062.5 && meas_mv < 2475 ){
+            state = 6;
+            break;
+        }
+        if (meas_mv >= 2475 && meas_mv < 2887.5 ){
+            state = 7;
+            break;
+        }
+        if (meas_mv >= 2887.5){
+            state = 8;
+            break;
+        }
+    }
+}
+
+void segmentSeto(){
+    d1 = 0,c1 = 0,b1 = 0,a1 = 0,d2 = 0,c2 = 0,b2 = 0,a2 = 0;   
+}
+
+void vuSet0(){
+    int m;
+    for ( m = 0;m <8 ;m++){
+        myled[m] = 0;
+    }
+}
+
+void vuMeter(){
+    int k;
+    k = 0;
+    if(preState > state){
+        vuSet0();
+    }
+    while(vuStatus){
+        checkState();
+        do{
+            myled[k++] = 1;        
+        }while(k < state);
+        break;
+    }    
+}
+
+void checkButton(){
+    int preB;
+    //buttonState = 0;
+    preB = buttonState;
+    if(button == 0){
+        if (preB == 0){
+            buttonState = 1;
+        }
+        if (preB == 1){
+            buttonState = 0;
+        }
+        wait(0.5);
+        
+    }
+    printf("preButton = %d",preB);
+    printf("buttonState = %d",buttonState);
+    
+    
+}
+
+int main()
+{   state = 0;
+
+    while(1) {
+
+        meas_r = analog_value.read(); // Read the analog input value (value from 0.0 to 1.0 = full ADC conversion range)
+        meas_mv = meas_r * 3300; // Converts value in the 0V-3.3V range
+        meas_v = meas_mv / 1000;
+        meas_vf = (meas_mv % 1000)/100;
+        
+        // Display values
+//        printf("measure = %f = %d mV = %d V = %d Vf\n", meas_r, meas_mv, meas_v, meas_vf);
+//        Segment();
+//        vuMeter();
+//        printf("State = %d \n",state);
+//        printf("Prestate = %d \n",preState);
+        checkButton();
+        if (buttonState == 0){
+            segmentSeto();
+            vuMeter();
+            vuStatus = 1;
+            segmentStatus = 0;
+        }
+        else if (buttonState == 1){
+            vuSet0();
+            Segment();
+            vuStatus = 0;
+            segmentStatus = 1;
+            
+        }
+        printf("vu = %d = seg = %d \n",vuStatus,segmentStatus);
+        
+
+    }
+}